Now try loading example.html from our server (www.webreference.com) directly to your Web browser. Click on the first button to call the EchoService Web service on (soap.bluestone.com). You will get a script error. It's a result of the fact that the WebService behavior will not work when the page resides on a server (www.webreference.com) and is downloaded to a client machine (your machine), where the page tries to call a service residing on a server in a different domain (soap.bluestone.com) than the first server. This scenario is represented by the diagram below (from Microsoft):

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